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A basic introduction to Anyscale and Airflow

1. Getting airflow up and running

Run docker-compose up in the root directory of this repository. This will start the airflow webserver and scheduler. You can access the webserver at localhost:8080. The default username and password are airflow and airflow respectively.

2. Authenticating to anyscale

1. Generate an anyscale platform API Key

  1. Go to the anyscale console
  2. Click on your username in the top right corner and select API Keys.
  3. Select the 'AI Platform' tab and click 'Create'

2. Add the API Key to airflow

  1. Go to the airflow webserver and click on Admin in the top right corner.
  2. Click on Connections and then Create.
  3. Fill in the following fields:
    • Conn Id: anyscale - this needs to match what you use in the DAG
    • Conn Type: Anyscale
    • Password: <your API Key>

3. Running a simple DAG

Checkout the dag under dags/sample_anyscale_job_workflow.py

This is a simple DAG that runs a job on anyscale. It uses the SubmitAnyscaleJob operator to run a job on anyscale.

Running the DAG

  1. Go to the airflow webserver and click on DAGs in the top left corner.
  2. Click on the trigger button next to the anyscale_job DAG.
  3. Click on the Graph View tab to see the progress of the DAG.
  4. Click on the Logs tab to see the logs of the DAG.
  5. Navigate to the Anyscale job page to see the job running.

Additional Notes

Developing Dags on Anyscale Workspaces

To develop an Airflow Dag on Anyscale Workspaces, you need to install the following:

apache-airflow
astro-provider-anyscale

Anyscale CLI and Anysacle Airflow Provider

Currently, the astro-provider-anyscale has the Anyscale CLI pinned to anyscale-0.24.44 which is older than what is currently available. Installing astro-provider-anyscale will uninstall the newer version.